According to David Palmer's 2006 book, Parent's Guide to IQ Testing and Gifted Education, the average score for customary intelligence tests is 100 with a standard deviation of 15; approximately 50% of the population will score between 90 and 109 on a modern IQ test.
How long the decomposition of compostable plates takes is a question that many people might ask, and several factors influence what the answer is. Generally, if a compostable plate is placed in a commercial compost facility, it will take less than 180 days to completely decompose.
The Time Taken By Other Waste Items to Decompose. 1  Canvas products - 1 year; 2  Batteries â 100 years; 3  Lumber- 10-15 years, 4  Sanitary Pads - 500-800 years; 5  Wool Clothing- 1-5 years; 6  Tinfoil- It does not biodegrade. Final Note. The increasing waste volume are a major concern for mankind. So, the best way to deal with this problem is avoiding products that generate waste materials that take more than a year to decompose in landfills through a proactive design for recycling. 1  Recycling Facts and Figures. 2  Glass Recycling Facts. 3  EPS (Styrofoam) Facts, Figures and Statistics. 4  How clothing recycling works.